QUESTION 11You have been asked to propose a multi-region deployment of a web-facing application where a controlled portion of your traffic is being processed by an alternate region.Which configuration would achieve that goal?

QUESTION 12When creation of an EBS snapshot Is initiated but not completed the EBS volume?

A. Cannot De detached or attached to an EC2 instance until me snapshot completesB. Can be used in read-only mode while me snapshot is in progressC. Can be used while me snapshot Is in progressD. Cannot be used until the snapshot completes

QUESTION 13You have been asked to leverage Amazon VPC BC2 and SOS to implement an application that submits and receives millions of messages per second to a message queue. You want to ensure your application has sufficient bandwidth between your EC2 instances and SQSWhich option will provide the most scalable solution for communicating between the application and SOS?

A. Ensure the application instances are properly configured with an Elastic Load BalancerB. Ensure the application instances are launched in private subnets with the EBS-optimized option enabledC. Ensure the application instances are launched in public subnets with the associate-public-IP-address=true option enabledD. Launch application instances in private subnets with an Auto Scaling group and Auto Scaling triggers configured to watch the SOS queue size

Answer: DExplanation:Bandwidth literally means network not IO Bandwidth. Having alerts to scale the Autoscaling is most sophisticated option.

QUESTION 14What is a placement group?

A. A collection of Auto Scaling groups in the same RegionB. Feature that enables EC2 instances to interact with each other via nigh bandwidth, low latency connectionsC. A collection of Elastic Load Balancers in the same Region or Availability ZoneD. A collection of authorized Cloud Front edge locations for a distribution

Answer: BExplanation:A placement group is a logical grouping of instances within a single Availability Zone. Using placement groups enables applications to participate in a low-latency, 10 Gigabits per second (Gbps) network. Placement groups are recommended for applications that benefit from low network latency, high network throughput, or both. To provide the lowest latency, and the highest packet-per-second network performance for your placement group, choose an instance type that supports enhanced networkinghttp://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html

QUESTION 15When an EC2 instance that is backed by an S3-based AMI Is terminated, what happens to the data on me root volume?

A. Data is automatically saved as an E8S volume.B. Data is automatically saved as an ESS snapshot.C. Data is automatically deleted.D. Data is unavailable until the instance is restarted.

QUESTION 16You are attempting to connect to an instance in Amazon VPC without success. You have already verified that the VPC has an Internet Gateway (IGW) the instance has an associated Elastic IP (EIP) and correct security group rules are in place.Which VPC component should you evaluate next?

A. The configuration of a MAT instanceB. The configuration of the Routing TableC. The configuration of the internet Gateway (IGW)D. The configuration of SRC’DST checking

Answer: BExplanation:If the VPC has an IGW attached and the instance has an EIP. You need to check the Route Tables of the subnet to verify if the default route is going through the IGW.

QUESTION 17An application that you are managing has EC2 instances & Dynamo OB tables deployed to several AWS Regions.In order to monitor the performance of the application globally, you would like to see two graphs 1) Avg CPU Utilization across all EC2 instances and 2) Number of Throttled Requests for all DynamoDB tables.How can you accomplish this?

A. Tag your resources with the application name, and select the tag name as the dimension in the Cloudwatch Management console to view the respective graphsB. Use the Cloud Watch CLI tools to pull the respective metrics from each regional endpoint Aggregate the data offline & store it for graphing in CloudWatch.C. Add SNMP traps to each instance and DynamoDB table Leverage a central monitoring server to capture data from each instance and table Put the aggregate data into Cloud Watch for graphing.D. Add a CloudWatch agent to each instance and attach one to each DynamoDB table. When configuring the agent set the appropriate application name & view the graphs in CloudWatch.

QUESTION 18You use S3 to store critical data for your company Several users within your group currently have lull permissions to your S3 buckets You need to come up with a solution mat does not impact your users and also protect against the accidental deletion of objects.Which two options will address this issue? Choose 2 answers

A. Enable versioning on your S3 BucketsB. Configure your S3 Buckets with MFA deleteC. Create a Bucket policy and only allow read only permissions to all users at the bucket levelD. Enable object life cycle policies and configure the data older than 3 months to be archived in Glacier

QUESTION 19A customer has a web application that uses cookie Based sessions to track logged in users It Is deployed on AWS using ELB and Auto Scaling The customer observes that when load increases. Auto Scaling launches new Instances but the load on the easting Instances does not decrease, causing all existing users to have a sluggish experience.Which two answer choices independently describe a behavior that could be the cause of the sluggish user experience? Choose 2 answers

A. ELB’s normal behavior sends requests from the same user to the same backend instanceB. ELB’s behavior when sticky sessions are enabled causes ELB to send requests in the same session to the same backend instanceC. A faulty browser is not honoring the TTL of the ELB DNS name.D. The web application uses long polling such as comet or websockets. Thereby keeping a connection open to a web server tor a long timeE. The web application uses long polling such as comet or websockets. Thereby keeping a connection open to a web server for a long time.

A. The IP of the primary DB instance is switched to the standby OB instanceB. The RDS (Relational Database Service) DB instance rebootsC. A new DB instance is created in the standby availability zoneD. The canonical name record (CNAME) is changed from primary to standby

Answer: DExplanation:http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Concepts.MultiAZ.htmlFailover Process for Amazon RDS:In the event of a planned or unplanned outage of your DB instance, Amazon RDS automatically switches to a standby replica in another Availability Zone if you have enabled Multi-AZ. The time it takes for the failover to complete depends on the database activity and other conditions at the time the primary DB instance became unavailable.The failover mechanism automatically changes the DNS record of the DB instance to point to the standby DB instance. As a result, you will need to re-establish any existing connections to your DB instance.